A list of 84 vascular plant species, collected in the Odzala National Park (Rép. Pop. Congo - Congo-Brazzaville), not mentioned in Sita & Moutsamboté's Catalogue of Plants from Congo-Brazzaville (1988) is given. Distribution maps and comments are provided for the most interesting species. A short phytogeographical outline of the region is also given. A new combination, Solenostemon giorgii (De Wild.) Champl. (Labiatae), is made and this species is lectotypified.